My friend give me few new recommandation on fish jellow.

I saw in few babies with strange crowl,they twist a little bit and when they swim in water they flip on them self .

Some fish are better some are bad.
My friend found that Tilapia is not very good ,Jellow made with tilapia and trout increase the problem of locomotion.Animal fed only with trout jellow dont show this problem .

To much vitamin D is very bad ,just a 1/4 pills for 1kg of fish is enough.
Beta caroten its the same.
When feeding babies sometime blood appear on the food as they eat,look like the gum is fragile ,Lack of vitamine C .So add 1/2 pill of vitamin C jameson for 1 kg fish.CAnt overdose with vitamin C.

I f you want add the fish skin in the mixture that help poo consistency.
Be careful to not burn your blender.Add the skin after the blending and cut in pieces with cisor.

I prefer altern with worms sometime frog or whatever.Only jellow can bring you problem if the recipe is not good,problem show at long term.